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Human vs Armadillo LastZ results

Human (Homo sapiens, GRCh38) and Armadillo (Dasypus novemcinctus, Dasnov3.0) were aligned using the LastZ alignment algorithm (LastZ) in Ensembl release 76. Human was used as the reference species. After running LastZ, the raw LastZ alignment blocks were chained according to their location in both genomes. During the final netting process, the best sub-chain was chosen in each region on the reference species.

Configuration parameters

ParameterValue
Gap open penalty (O)400
Gap extend penalty (E)30
HSP threshold (K)3000
Threshold for gapped extension (L)3000
Threshold for alignments between gapped alignment blocks (H)2200
Seed and Transition value (T)1
Scoring matrix (Q)
Default:
     A    C    G    T
    91 -114  -31 -123
  -114  100 -125  -31
   -31 -125  100 -114
  -123  -31 -114   91

Chunking parameters

ParameterHumanArmadillo
Chunk size30,000,00010,100,000
Overlap0100,000
Group set size10,100,000
Masking options{default_soft_masking => 1}

Statistics over 1,796,634 alignment blocks

Genome coverage (bp) Coding exon coverage (bp)
Human

Uncovered: 1,709,944,288 out of 3,099,750,718
Covered: 1,389,806,430 out of 3,099,750,718

Uncovered: 2,657,062 out of 38,571,754
Matches: 30,490,968 out of 38,571,754
Mismatches: 4,936,064 out of 38,571,754
Insertions: 487,660 out of 38,571,754
Identity over aligned base-pairs: 84.9%

Armadillo

Uncovered: 2,330,490,681 out of 3,631,522,711
Covered: 1,301,032,030 out of 3,631,522,711

Uncovered: 4,914,748 out of 34,329,446
Matches: 25,567,696 out of 34,329,446
Mismatches: 3,668,256 out of 34,329,446
Insertions: 178,746 out of 34,329,446
Identity over aligned base-pairs: 86.9%

Block size distribution

Size range All 1,796,634 alignment blocks Blocks grouped in nets
# blocks Total size (incl. gaps) # nets Total size (incl. gaps)
1 bp - 10 bp
19,776
129.7 kb
10 bp - 100 bp
142,679
8.4 Mb
18,000
1.2 Mb
100 bp - 1 kb
1,142,103
523.2 Mb
65,620
24.7 Mb
1 kb - 10 kb
491,576
924.4 Mb
20,421
49.9 Mb
10 kb - 100 kb
500
6.2 Mb
2,746
87.7 Mb
100 kb - 1 Mb
1,729
638.9 Mb
1 Mb - 10 Mb
379
660.1 Mb